The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 1988
Filed:
Jan. 17, 1986
Eric Wood, Wellingborough, GB;
Insituform Group Ltd, , GB;
Abstract
The present invention provides a material which comprises a laminate of a fibrous layer such as a felt which can be impregnated with curable synthetic resin, and bonded to the felt is a membrane comprises three layers namely an inner layer of a low softening point material bonded to the felt, a barrier layer which represents a barrier to the aggressive components of the resin such as the styrene, and an outer layer bonded to the outside of the fibrous layer to provide for the application of patches and sealing tapes by heat or solvent welding.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile